Published: 07/12/2017 Updated: 31/07/2020

CVSS v2 Base Score: 10 | Impact Score: 10 | Exploitability Score: 10

CVSS v3 Base Score: 9.8 | Impact Score: 5.9 | Exploitability Score: 3.9

VMScore: 890

Vector: AV:N/AC:L/Au:N/C:C/I:C/A:C

In Mercurial prior to 4.4.1, it is possible that a specially malformed repository can cause Git subrepositories to run arbitrary code in the form of a .git/hooks/post-update script checked into the repository. Typical use of Mercurial prevents construction of such repositories, but they can be created programmatically.

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mercurial mercurial
debian debian linux 7.0
debian debian linux 8.0

It was found that mercurial was vulnerable to cross repositories modification A specially crafted mercurial repository could trigger arbitrary commands on a client during commands such as clone or update ...

CWE-78 https://www.mercurial-scm.org/wiki/WhatsNew#Mercurial_4.4.1_.282017-11-07.29 https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-November/107333.html https://bz.mercurial-scm.org/show_bug.cgi?id=5730 https://confluence.atlassian.com/sourcetreekb/sourcetree-security-advisory-2018-01-24-942834324.html https://lists.debian.org/debian-lts-announce/2017/12/msg00027.html http://www.securityfocus.com/bid/102926 https://lists.debian.org/debian-lts-announce/2018/07/msg00005.html https://lists.debian.org/debian-lts-announce/2018/07/msg00041.html https://lists.debian.org/debian-lts-announce/2020/07/msg00032.html https://nvd.nist.gov https://access.redhat.com/security/cve/cve-2017-17458

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CVE-2017-17458

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